GAS-ASSISTED STRIPPING OF LIQUID SOLVENTS FOR CARBON CAPTURE

摘要

The embodiments of the disclosure relate generally to absorbent processes, systems, and methods. The disclosure includes the use of a combination of thermal regeneration and gas assisted stripping to convert a rich CO2 absorbent to a lean CO2 absorbent via an intermediate semi-lean CO2 absorbent. The system includes a regenerator and a stripper to convert the rich CO2 absorbent to the lean CO2 absorbent, and can further include a combustor and an absorber. A fuel gas can be used as the stripping gas, thereby producing a CO2-rich fuel gas, which can be recycled to a combustor to reclaim the fuel value.

主权项

1. A system for removing carbon dioxide (CO2) from a CO2-absorbent comprising:
a regenerator configured to remove a portion of CO2 from a CO2-absorbent to produce a semi-lean CO2-absorbent; and a stripper configured to contact at least a portion of a fuel gas with the semi-lean CO2-absorbent to remove at least a portion of the CO2 from the semi-lean CO2-absorbent to produce a lean absorbent and a CO2-enriched fuel gas.